Althoughthecausesofcancer,wedo

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Although the causes of cancer_____, we do not yet have any practical way to prevent it.

A．are being uncovered	B．have been uncovering
C．are uncovering	D．have uncovered

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He hasn't come yet．What do you consider _______ to him？

A．happens	B．has happened
C．happening	D．to happen

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____ we move the picture over there? Do you think it’ll look better?

A．What about

B．How far

C．What if

D．How come

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Unfortunately, when I dropped in, Doctor Li _____ for Beijing to join in the fight again SARS, so we only had time for a few words.

A．just left	B．has just left
C．is just leaving	D．was just leaving

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I wonder why you won’t do it as ____. It’s the third time you have done so.

A．told to

B．be told

C．told you

D．you told

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— I’d like to go to the cinema with you, Dad.
— Sorry, my darling, but the film is ____ for adults only.

A．admitted

B．intended

C．promised

D．permitted

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